Liquid-measuring device



Feb. 14, 1928. 1,659,372 v A. NAGEL .LIQUID MEASURING DEVICE File Dec. 4. 1923 2 shmsheet l F43 im mw y f J i I Feb. 14, 1928.

A. NAGEL LIQUID MEASURING DEVICE Filed Dec. 4. 1923 2 Sheets-Sheet Feb. le, ltlila 4UNITED .STATES AUGUsT NAGEL, or STUTTGART, GERMANY.

monrnivinascnino DEVICE.

application filed December 4, 1923, Serial` No. 678,548, and in Germany March 23, k1923.

My kinvention relates to liquid nieasuringi` devices of the lrind` in which an upper Valve and a lower valve are connected with each other by a rod and actuated by a float in such a inanncr that they are alternately opened and closed, such device being- -lor .in-` sLancc shown and described in my copending` application ttor patent of the United States for Liquid measuring device, tiled Sept. l2. i923, Serial No. 662,268.

lt is an object ot my present invention to ensure tight closingl of the valves under the action ot the weighted lever, or tumble weight, which forms part of the mechanism. ft is a tui'ther'object to obviate the nntavorable eiiect exerted by thev entering liquid on the liquid distributingl disc arranged above the tloat mentioned. A still further object is to prevent-the controlling.; means 'for the entering liquid from beingl atl'ectcd by :foreign bodies carried along' with the liquid. i ln order to attain the first of these objects, l provide toggle-levers actuated by p ins projecting forth from the tumble rweight5 as well as a rotary segment connected with the tumble weight' and meshing` with the gearing` actuated by the float. One of the togglelever arms is supported elastically, the other zii-in is pivoted to a single-armed leverengagring with its free end a sleeve or oblong` collar'attached to the rod connecting the two valves. rlhis inechanisn'i serves to press the valve which shall be closed tlrmly on its seat until the mechanism is released by the tumble weight.

ln order to attain the second object, the .liquid d ribnting disc is firmly secured to ay stationary part on top oi"l the device, and the inlet ports are located above it. In order to attain the third result, this top member is devised as a valve body in which a collecting chamber -for `foreign bodies termed9 a sieve being provided vabove this chamber vand inserted in `the `passage or channel extending,` from the liquid' supply pipe to the inlet valve7 as will be more fully inscribed hereinafter, y y

In the drawings affixed tothis specification and :formingl part thereota device `embodying my 'invention is `illustrated diagrammatically by way otexample. In the drawings Y` y y vFigure yl is a vertical. section7 the float being` shown in its upper position and in side-view, part ot its wall being broken away.

Figure 2 shows the lower halt ot' Figure l withthe lioat in its lower position.

Figure l is a horizontal section taken between the disc 9 and the weight gw in Fig. 2, some parts `o't the cylinder being broken away.

Figure 4 shows a detail relating to the means lor retaining impurities.

Referring` to the drawings, the casing ot 'the liquid measuring device consists ot the cylinder cna cover al and a bottom a2 which arec'onnected with each other by bolts a3. Through a. `central aperture of the cover al extends a valve body of; the'` `bottoniotl which carries a disc 6 connected by rods 8 with a plate 7 claii'qii-id between the cylinder a and the bottom fr?. The valve body b isthus mounted on the plate 7 by the intermediary of thcrods 8 and the disc G.

In the valve body Z) is provided a vertical chamber 7c which forms at its lower end a scat for the inlet-valve d. This valve is secured to the upper end of a valve rod 8 which extendsvertic'ally through twotelescopically arranged tubes m and 7i. the former ot' which extends through the iioat Z and is liXed thereto7 whereas the tubei is supported on the plate 7. At the lower end ot' this tube are provided some apertures g; To the lower end ot the valvel rod .i which extends through the tube 7i and through the platef?, isattachedthe outlet valve e 'tor which a seat f is formed in a member c .fixed to the plate 'i'.A rllhe length oi,i the rod s is such'xthat the valve c isfopened when the alve d is closed (Fig. l) and vice versa (Fig. 2). f

lilith the rods 8 is connected `a horizontal plate 9 troni which are suspended brackets l0 and 10.` The bracket l() carries a short horizontal spindle 11 (Figi. 3) to which are tizied two pinioiis 0 and y?. "Pinion 0 meshes with a vertical rack n (Figs. l and Q) securedto tlietube m ot theloat Z. Pinion yi meshes with the (logged circular part ot an eccentric segment f/jrtixed to one end ot a short horizontal spindle (76 supported in projeetions of the tube 7i. The tube m is slotted at its lowerv end so as to `moveifreely on the `tube 7i in vertical direction. `Tube L is also slotted, andarin u hinged at @il to the bracket i0. extendingthrougli the slot. The tree end ot this arm engages VU-shaped collar t securedto the valverrod er, The arm u is connected with the `upper lever r1 of apair of toggle-levers r r1. Lever r is jointed at v1 to a flat spring o secured to plate 7.

The upper links r1 of. the toggleslever systems are connected at their upper ends bya pin u2 which at the same time serves 'for con'- necting the-,toggleflevers `with the arm The other end of shaft to `which the eccentric.1 segment@ ,is fixed, 4is connected with a lever g1 carrying a Weight g1 and cooperating with one ot the toggle-levers, ivlrile segment g; co-operates ywith the. other togglelever in -suelta manner that these levers are alternatelyhentr (Fig. l), "and stretched (Fig. To this efl'ectsegn'ient (l is provided With-pins q2 (Fig. l) located diametrically oppositeto` one another, and the double-arined Atn rub'le weighty1 carries similar pins g5 3). `f lliefpins g?, gf effect the bending, ipins g3 o*` the stretching or straightening of Athe togigledeve'rs. This -latter movementot the toggle-levers yis limited by angular projections l1"F ..provided at the lower. ends `of the, leveraifmsrl, and, While motion in this direetion proceeds, spring o isplaced under tensitm,` as shoivn in Fig. 2 ivhere the parts shoyvn inthe position where the lioat Z yis lin its lovverniost position, valve e being` v closed and cylinder@ being ready tovbe refilled.; When the cylinder has been filledfthe, iloatZ assumes its uppermost position and the toggle-levers .are bent, as shown in Fig-Ll. In Athis `position ofthe togglelevershtlre position of the tumble weight q1 is such that its,` Weight Q1" is l0- cated on the (Fig. l) of the levers, tWhereas, the opposite position, the Weight isp-lo -ated ontlie right `(Figs2 and 3),

, linthe valve body o, `there isv providedvbesides the vertical chamber 7c, `another vertical chamber` in which a sieve fw is inserted which is pressed upon its seat by a member L?l secured in place by athreadedplugo. A similar member 7c3 and a similar plug 7/1y are arranged above the clian'iber 71;.` The channels provided inthe members 7a2 and lo? are connected With each other by a conduit o1. (3o-axially with the conduit ol'is arranged a threaded plug b2 which can be removed when the conduit olis to be cleaned. The communication between Vthe, tivo chambers in the .valve-body b can be interrupted by turning either member 7c? `or member la?. Below the sieve 'w is .a collecting chamber. .'13 for the solid matter retainedfby `the sieve.` y s The liquidl to be measured is .supplied to the device through the pipe ,bt (Eig.A` l) which is connected With fthevalve body by a "nuit be' and through a conduit 7c1.

.The `'seat fof valve?) extends `through the 'pure e aaa is here provided with `horizontal passages 705 through Whichthe liquid flows onto "a distributing disc A3 located above the float Z and rigidly secured t0 the downwardly `projecting part of the valve body Z).

`In the modilication illustrated ib Fig. 4, means are provided whereby the conduit k1 is automatically closed when the threaded plug y is removed in order to get access to the member/1:?. A small plunger .a (Fie. 4) having a crossbore el is located co-axially tothe conduit/v?. Below the plunger z is arranged a spring .2fwhich tends to press it upwards ,.tliisbeing normally prevented by a Hin Qlvextending u'piy'ards from fthe plunger, andhe'lddoivn by a lateraleiztensioii of ,the Hanger/1 ol vthe threaded plug y, pin 2 being guided in, a plug l. The plunger is secured againstrotation y by a lateral -projection a engaging a groove Obviously', `,the con duit/a1 is Yclosed auton'iatically by fthe spring whenever `the fiange y1 of the plug y releases the pin 2. l

rlfhe manner y of opeiationof kthe liquid measuring device above described is as 'folloivszp r .f u

` Supposing the 4float Z to be lifted by the liquid flowing into the cylinder a and to have nearly reached the end of its upward stroke, the rackka is just about to release the 'pinion o. The tumbleweight gl has been turned from the right V'to theleft, while the float Was rising, and its weight '11 may be supposed tolliave reached `the position indicated in dotted lines in igure l. yThe 'Weight q1? is 'now 'about to be thrown over but is lretained as long` as it is coupled with the rack by means ofthe spindle Q?, the cccentric disc Q', the pinionp, the spindlell, andthe ypinion o.. However, at the moment Where this indirect coupling is disengaged, that is yto say, when the rack a releases the pinion l0, 'the `weight g1?. can drop and` can suddenlyturn to the [lefti together with its lever Q1 but, as the tumble Weight gm is connected with the segment g by spindle g, segment g is rotated and its pin rf and the pin gf on the Weighted lever QAstrilge the toggle levers r, 'rl and cause them to bend as shown in Fig. 1, whereby the arin a is caused to drop l'together with Vtheivalve rod s connected with it by the sleeve or oblong collar L Owing to Athe valve-'rml s dropping, the upper` valve d iscloscd and valve c is opened, .and the liquidcan escape through the` apertures of Athe guide-tube 7L and through the orilice o* in the bottom a?.

As the float, descends with. 'the level` of `the liquid, therack 'n comes into gcar again with the "pinion o, Wherebyspindle 11, pinion p, segmento, spindle 16 fand tuinble `weighty g1 gloare 1set moving. ,The` toggle-lev'ers` remainin their bent position, y being retained "therein by spring o. The weight rfb gradually moves to the other side, but is 'alloived to drop only after the float, has 'reached the end 'of its downward stroke, that is to say, when the rack has again released the Illi) li (i pinion 0. The dropping of the weight causes the `pin g3 on the segment g and the pin Q5 on the weighted lever Q1 to strike the toggle levers r, r1 so that as to cause them to be stretched (Fig. 2), whereby arm 4t is raised and is caused to litt also the valve rod with the valves. The discharge of liquid at f is now interrupted and, at the same time, the inlet valve d is opened to allow a fresh supply of liquid to enter the cylinder a.

This cycle of operations is repeated automatically as long as the communication between the supply pipe o4 and the chamber' 7a is not interrupted, this being eiiected either by rotating one or" the members 734 or 1:2 or automatically by the plunger a (Fig. 4l).

I wish it to be understood that I do not desire to be limited to the exact details of construction shown and described, for obvious modifications will occur to a. person skilled in the art.

l. A liquid measuring device comprising an inlet and an outlet valve, a spindle connecting said valves and adapted to be displaced axially to open one and to close the other valve, a. tumble weight, a float, a rack operatively connected with said tloat and also with said tumble weight so as to raise said weight above its dead-centre position upon upward motion oit.' said float, and mechanism operatively connected with said tumble weight and said spindle so as to displace said spindle when said tumble weight has been released by said rack and has moved trom its dead-centre position.

2. A liquid measuring device comprising an inlet and an outlet valve, a spindle connecting' said valves and adapted to be displaced aXially to open one and to close the other valve, a tumble weight, a float, a rack operatively connected with said float and also with said tumble; weight so as to raise said weight above its dead-centre position upon upward motion of said float, and mechanism operatively connected with said tumble weight and said spindle and including a toggle lever, means connected with said tumble weight i'or alternately bending and stretching said toggle lever so as to displace said spindle when said tumble weight has been released by said raclr and has moved from its dead-centre position.

3. A liquid measuring device comprising an inlet and an outlet valve, a spindle connecting said valves and adapted to be displaced axially to open one and to close the other valve, a tumble weight, a loat, a rack operatively connected with said float and also with saidl tumble weight so as to raise said weight above its dead-centre position upon upward motion of said float, and mechanism operatively connected with said tumble weight and said spindle and including a toothed segment adapted to mesh with said rack which is coaxial and oppositely connected with said tumble weight, and a toggle lever means connected with said tumble weight for alternately bending and stretching said toggle lever so as to displace said spindle when said tumble weight has been released by said rack and has moved from its dead-centre position.

fl. A liquid measuring device comprising an inlet and an' outlet valve, a spindle connecting said valves and adapted to be displaced axially to open one and to close the other valve, a tumble weight, a. float, a rack operatively connected with said lioat and also with said tumble weight so as to raise said weight above its dead-centrc position upon upward motion ot said float, and mechanism operatively connected with said tumble weight and said spindlev and including a toggle lever, a toothed segment adapted to mesh with said rack, which segment .is coaxial and operatively connected with said tumble weight, a` pair ot pins on said segnu a pair oit pins on said weight, and a toggle lever adapted to be bent by the pins ot one pair and to be stretched by Vthose ot the other, so as to displace said spindle when said tumble weight has been released by said rack and has moved from its dead-centre position.

Liquid measuring device comprising an inlet and an outlet valve, means for alternately closing one and opening the other valve, a liquid supply, means providing communication between said supply and said inlet valve, removable means for inspecting the interior of said communicating means, a sieve and a settling tank arranged in said communicating means for removal after removing said inspecting means and means for interrupting said liquid supply, said inten rupting means being operatively connected with said inspecting means, so that said interrupting means comes into operation upon removal of the removable inspecting means.

(3. Liquid measuring device comprising an inlet and an outlet valve, means for alternately closing one and opening the other valve, a liquid supply, means providing com munication between said supply and said inlet valve, removable means for inspecting the interior of said communicating means, a sieve and a settling tank arranged in said con'nnunicating means for removal after removing said inspecting means, and a spring actuated piston valve for interrupting said liquid supply, said piston-valve being opera tively connected with said inspecting means, so that said piston valve? comes into operaF tion upon removal of the removable inspect ing means.

In testimony whereof I atlix my signature.

AUGUST NAGEL. 

